front brakes

[Martin]

So I was changing my right cv today and decided while I was at it to change out the rotors and pads up front as the rotors seemed rather old and weren't doing so well... plus I picked them up cheap... But now that I have everything put together, the pedal feel is a lot worse? Did air get in the system even without actually loosing any fluid? Or do they just have to seat a bit. I am planning on picking up some rear disc's tomorrow and then will end up bleeding the system, but I was just wondering why it is worse.